This
Class
Is
Almost
Over
100
What is threatening grassland biomes like the prairies in North America?
What is soil erosion caused by overgrazing and over farming.
100
The majority of marine organisms are found _________.
What is in shallow coastal waters.
100
Which parts of the world are the most extinctions occurring?
What is tropical rainforests.
100
In the ____ zone, life is diverse and abundant.
What is the littoral zone.
100
What is a direct effect that global warming will have on land?
What is flooding.
200
Where do estuaries receive their nutrients?
What is rivers and oceans.
200
What types of organisms have a high reproductive potential?
What is bacteria.
200
What has the greatest effect on reproductive potential?
What is reproducing earlier in life.
200
What biome has a Mediterranean-style climate.
What is the chaparral.
200
Why is breathing carbon monoxide dangerous?
What is lowers the level oxygen carried in the blood.
300
Which activity is the cause of most primary air pollutants in the U.S.?
What is electricity production.
300
Describe the soil of a tropical rainforest.
What is thin, lacks nutrients.
300
which chemical leaches out of soil under acidic conditions?
What is aluminum.
300
Rain is considered "acid rain" if the ph is lower than
What is 5.
300
The relationship between acacia trees and ants that live on them is
What is mutualism.
400
One way radon and asbestos are similar.
What is increase the risk of cancer.
400
Explain how to determine carrying capacity.
What is determine the supply of the most limited resources.
400
Why have some communities banned detergents containing phosphates?
What is can cause fish to suffocate and die (artificial eutrophication).
400
What type of vegetation grows in the taiga?
What is coniferous trees.
400
What common effect does thermal pollution and artificial eutrophication have?
What is it lowers dissolved oxygen.
500
The largest watershed in the U.S.
What is the Mississippi.
500
The current rate of species extinctions is
What is caused by humans.
500
What percentage of total species have become or are expected to become extinct between 1900-2100?
What is 25%.
500
Is thick fur on a deer an example of coevolution? Why, or why not?
What is no, thick fur did not evolve in response to other organisms.
500
What is the best way to preserve biodiversity?
What is creating large parks/reserves in biodiversity hotspots.
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